baber/WOPTO huggingface dataset:
Patent GB-453643-A (GB)
Title: Improvements relating to machanism for producing a uniform or substantially uniform tensioning force on lineal elements
IPC: B65H23/188
Filed: 1934-12-12
Abstract: 453,643. Drawing wire. JOHNSON, A., 144, West 34th Street, New York, U.S.A. Dec. 12, 1934, Nos. 35683/34 and 22886/35. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 10, 1935.] [Class 83 (iv)] [See also Groups XXXV, XVI, XXV, and XXX] In drawing a wire it is driven or retarded at one point and a substantially constant tension is applied to it at another point through the medium of an electric torque motor and gearing connecting the driving member and the tensioning member, the arrangement of gearing being such that there is very little relative movement of the two rotatable elements of the torque motor. In the construction shown in Figs. 9 and 10, the linear element 10 is driven or retarded by the rollers 2 geared together and rotated by the electric motor M. Tension is applied by the gripping rollers 11 to the part of the linear element between the driving element 2 and the tensioning elements 11, this tension being applied through a chain 22, a differential gear and an electric torque motor 8<1>. The shaft of the driving motor M drives one differential wheel 15 in one direction ; the chain 22 is driven by the other differential wheel 16 in the opposite direction and the torque motor 81 holds the planet carrier substantially stationary. In the modification shown in Fig. 1, a wire 10, passing through dies 9, is driven by the pulley 2 and motor M and is tensioned by the pulley 11 which is connected to the motor M through the epicyclic gear 40, torque motor 8 and chain 22. Between the chain 22 and the epicyclic gear is interposed a clutch consisting of a helical spring 28 which grips the sleeve on which it is mounted so as to transmit a solid drive to the epicyclic gear 40 when the torque of the torque motor 8 is sufficient. But when the torque motor is ineffective, the spring 28 engages the outer sleeve 24 and connects the pulley 11 and motor M through the chain 22. In a modification, two tensioning devices each with its epicyclic gear may be mounted on opposite sides of the driving member. The first Provisional Specification discloses other forms of apparatus.
Patent GB-1338158-A (GB)
Title: Sealing means for needle roller bearings
IPC: F16C33/78
Filed: 1971-07-29
Abstract: 1338158 Seals NIPPON SEIKO KABUSHIKI 29 July 1971 [29 July 1970] 35696/71 Heading F2B Sealing means for a needle roller bearing 2 of which the outer race 3 has a radial flange 31 spaced from a shoulder 11 on a trunnion 1 forming the inner race comprises a resilient sealing ring 5 substantially of C cross-section having a side wall 52, a dust lip 51 extending axially from the outer end of the wall, a cylindrical portion 53 integral with the inner end of the wall and a grease lip 55 extending obliquely radially outwardly from the free end 531 of the cylindrical portion. In use, Fig. 3, the ring tightly surrounds the trunnion with the wall 52 abutting the shoulder 11, the dust lip 51 contacting the outer periphery of the race 3 and the grease lip 55 deformed into sealing contact with the flange 31. The inner surface 551 of the lip 55 may be concave as shown in Fig. 4 and the ring may be of rubber or a synthetic resinous material reinforced by a U-section core 6. In a modification, Fig. 6 (not shown), the dust lip (51) is formed with a ridge (511) on its inner surface and the core (6) is L-section. In a further modification, Fig. 10, the grease lip 55 comprises a main lip 55a and an auxiliary lip 55b.
Patent GB-448705-A (GB)
Title: Improvements in and relating to aircraft tailplanes
IPC: B64C1/00
Filed: 1934-12-12
Abstract: 448,705. Controlling aircraft. COATS, A. G., Gloucester House, Park Lane, London, and HAFNER, R., 47, Mantlergasse, Vienna. Dec. 12, 1934, No. 35705. [Class 4] Aircraft capable of controlled descent at large angles of incidence are provided with a stabilizing tailplane rockable into alignment with the relative air-flow during steep descents and adapted to be rocked towards its normal position, by the change in the air flow, on the resumption of forward flight. In one form, the control surface 5 is adjusted from the control wheel 12 through cables 11 maintained taut by spring-loaded jockey pulleys 13. In a modification, the surface 5 is adjusted initially through intermeshing gears 14a, 14 and subsequently by gears 15a, 15. The surface 5 may be articulated about an axis passing through the centres of pressure of its section. Frictional, hydraulic or like means may be associated with the control surface and the resistance of such means is arranged to decrease with deflection. The frictional means may comprise a spring- loaded brake band 17 and a clip device adapted to engage with a sector 21. The pressure between the clip and the sector may be adjusted by means of a bolt 22. In a modification, a disc 27 on the surface spindle 16 co-operates with friction material 28 interposed between the disc and a housing 25. The frictional resistance is diminished with increased movement from the normal position by the action of cam surfaces 33, 34. The cam surface 33 is carried on a disc 30 slidable but not rotatable in the casing and loaded by a spring interposed between the disc and an adjustable abutment 24.
Patent GB-412178-A (GB)
Title: Improvements relating to the withering of tea leaves
IPC: F26B23/06
Filed: 1932-12-16
Abstract: 412,178. Electric resistance ovens. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and CRIDGE, R. H., The Chimes, Dalkeith Avenue, Bilton, near Rugby. Dec. 16, 1932, No. 35734. [Class 39 (iii).] Electrically heated screens extending across the air passage within a tea-withering loft are controlled by hygrometers responsive to the humidity of the air. The screens may be formed of hinged sections. Thus a screen may comprise a plurality of posts 32 suspended from rollers running on a rail 33. Between the posts are pairs of frames 38 covered with wire netting 41 attached at top and bottom to bus-bars 42. The upper busbars on a pair of frames are permanently connected by flexible conductors 43, while a removable flexible connection is provided at the lower end between pairs of frames. A link at one end of the whole screen ensures that the electric supply is cut off before the screen is folded. The heaters are supplied with current at about 60 volts.
Patent GB-884020-A (GB)
Title: Improvements in or relating to inspection window arrangements
IPC: G01P13/00
Filed: 1959-10-22
Abstract: 884,020. Gauge glasses. GERDTS, W. F., and GERDTS, H. R., [trading as GERDTS KOMM.-GES., GUSTAV F.]. Oct. 22, 1959 [Oct. 22, 1958], No. 35771/59. Class 123(1). [Also in Group XX] An inspection window arrangement, e.g. for the visual observation of fluid in a pipe or of the fluid level in a container, comprises a forged steel body 1 having a cylindrical internal observation space 9 which communicates with transverse passages 4, 4<SP>1</SP> extending through two connection pieces 5, 6 e.g. for screwing or welding to a pipe line and which is closed at its ends by observation windows 12, 13 spaced by a rotatable and axially movable support 10. The window 12 is seated by means of an external nut 16 which has an inspection aperture and which can be tightened to transmit sealing pressure through the intermediary of a sealing ring 19 sandwiched between profile rings 20, 21. Additional sealing rings are arranged on each face of the windows 12, 13, the window 13 being pressed outwardly against an annular shoulder 2 on the body 1. For observation the fluid is deflected in double-S form around a nose 11 in the movable support 10. If the passages 4, 4<SP>1</SP> are arranged vertically the support 10 is correspondingly rotated through 90 degrees so that the nose 11 depends vertically.
Patent GB-1522853-A (GB)
Title: Connector for electronic equipment
IPC: H01R13/658
Filed: 1975-08-29
Abstract: 1522853 Electrical connectors COMTRONIC GmbH BAUELEMENTE GERATE UND MATERIALIEN FUR DIE ELEKTRONIK 29 Aug 1975 [31 Aug 1974] 35780/75 Heading H2E A connector has each of its pins fitted with a tubular filter, the pins being disposed in recesses in an elongate housing 1 having conductive elements (9, Fig. 2, not shown) at each end for attaching the connector to an electronic unit. The filters 3 extend by about half their length into the housing and are soldered to an earth plate 5, the remaining half of the filters not in the housing being embedded in insulating material 7. In the embodiment a retaining clip 2c arranged about each pin 2 has a projection 2d engaging a shoulder in the housing bore. A plastics member 6 serves to retain casting resin 7 before it sets. Fingers (5a) extending from the earthing plate 5 are bowed outwardly and press against the sides 8a of an aperture in plate 8. Reference has been directed by the Comptroller to Specification 1,014,740.
Patent GB-1361846-A (GB)
Title: Process for producing glucose isomerizing enzyme
IPC: C12N9/92
Filed: 1971-07-30
Abstract: 1361846 Fructose: enzymatic isomerization of glucose AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 30 July 1971 [30 July 1970] 35868/71 Heading C2S [Also in Division C3] Glucose and converted starch (90 DE) are converted into fructose by an intracellular glucose isomerase obtained by culturing a glucose isomerase-producing microorganism of the genus Streptomyces wherein the process is characterized by adding or replenishing the culture medium, at least during the term of glucose isomerase induction with an inducer selected from one or more of D-xylose, xylobiose, D-xylulose, xylan, xylan hydrolysates and xylan containing materials, such that amounts of the inducer in the culture medium are maintained at or above a predetermined level.
Patent GB-1020506-A (GB)
Title: Photoconductive recording materials
IPC: G03G5/05
Filed: 1961-12-29
Abstract: Zinc oxide particles are treated to absorb at least one compound selected from unsubstituted acyclic aliphatic mono- and polycarboxylic acids having no carbon chain longer than 10 atoms and their anhydrides, acyclic aliphatic mono- and polycarboxylic acids substituted by water-solubilizing groups, and salts of such unsubstituted and substituted acids.  With most of these compounds it is thought that an interchange of cations will occur at the zinc oxide surface.  A list of suitable compounds is given in the Specification.  Various other organic compounds are suggested for use in combination with the above compounds to treat the zinc oxide. They are aliphatic mono- and poly-sulphonic acids and their salts; aliphatic boric acid compounds and their salts; aromatic mono- and poly-carboxylic acids and their salts and anhydrides; and aromatic sulphonic acid compounds and their salts.  The aliphatic carboxylic acid(s) with or without the additional compounds suggested above will be termed a "treating agent."  The zinc oxide particles may be contacted with the treating agent in the following ways:  the zinc oxide may be exposed to a gaseous form of the treating agent; the treating agent may be added to an aqueous or organic dispersion of the oxide; or the zinc oxide may be dispersed in a binder solution and used to form a photoconductive layer on a backing which comprises a layer containing a sufficient concentration of treating agent to ensure that the treating agent diffuses into the zinc oxide layer during the coating operation or during storage prior to use-alternatively the treating agent may be allowed to diffuse from a layer applied over a resin-bound layer of zinc oxide.
Patent GB-836173-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: B60H1/00
Filed: 1957-11-19
Abstract: 836,173. Heating air. HANLON & WILSON CO. Nov. 19, 1957 [Nov. 19, 1956], No. 35982/57. Class 64(3) An air heater for vehicles comprises a duct 4 conveying a heating fluid such as exhaust gas, disposed within and spaced from the wall of a housing 1 through which the air to be heated is circulated, the duct 4 comprising a receiving chamber 22 for the heating fluid in the form of an elbow, a discharge chamber 23 for said fluid and a connecting chamber 24, the respective chambers being so disposed that the heating fluid flows with a swirling action therethrough in the manner shown by the arrows A in Fig. 5, and extended heat exchange surface in the,form of pins 10 being secured to at least the outer surface of the duct wall. Preferably the pins 10 have heat radiating fins 10a formed thereon and are projection welded to the duct wall as indicated in Fig. 6, a protrusion 25 being thereby produced on the inner surface of the wall. The protrusions 25 serve to prevent laminar flow of the heating fluid near the wall surface. In a further form described pins are welded on both sides of the duct wall in opposed pairs. In the vehicle heater shown the air is heated by exhaust gases of the vehicle engine which flow through the duct 4 in a direction generally opposite to that of the air flowing through the surrounding casing 1. Air flow may be regulated by a valve 5 and damper 6a. The duct 4 compries two half-shell members 17, 18 (Fig. 5) welded together.
Patent GB-874716-A (GB)
Title: Improvements relating to blocking oscillators
Inventor: TAYLOR JAMES GEORGE
IPC: H03K3/30
Filed: 1958-11-10
Abstract: 874,716. Transistor blocking oscillator circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 6, 1959 [Nov. 10, 1958], No. 36049/58. Class 40(6) A blocking oscillator has self bias provided by a non-linear impedance element in series with the main current path. As shown, the transistor T is normally biased back by the high resistance of a selenium rectifier or silicon diode RF. A trigger pulse, applied between terminals IT1 and IT2, drives the transistor into conduction, the current being increased by regeneration from the transformer Tx. The diode RF presents a lower impedance to the increased current so that power loss and negative feedback due to the biasing circuit is minimized. An auxiliary bias current may be applied via resistor R. The secondary winding W2 may alternatively be connected across terminals IT1 and IT2. Fig. 2 (not shown) relates to the use of a silicon diode, driven into its Zener mode when the transistor is pulsing. The diode RF reduces risk of thermal runaway.
Patent GB-760668-A (GB)
Title: Improvements in or relating to devices for measuring a physical quantity
IPC: G01R1/28
Filed: 1954-12-14
Abstract: 760,668. Electric measuring system. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 14, 1954 [Dec. 17, 1963], No. 36162/54. Class 40 (1). The invention relates to automatic balancing apparatus for measuring physical quantities wherein a known voltage taken from the motordriven slider of a potentiometer balances a voltage dependent on the physical quantity, and is characterized in that the signal voltage may also be opposed by fractions of other voltages to obtain a particular relationship between the potentiometer setting and one or more physical variables, the fraction being dependent on the potentiometer setting. As shown (Fig. 2), the voltage across a resistor 1 is proportional to the magnitude p of a physical quantity, e.g. resistor 1 may be the diagonal of an A.C. temperature-measuring bridge having one temperature-sensitive resistance arm, and this voltage is balanced by a fraction x of the known voltage e across a first potentiometer 3, and the fraction x of a voltage across a second potentiometer 5 which is also proportional to p. Any difference voltage is amplified at V and drives a motor M to set the coupled potentiometer sliders 3, 6 to give balance. A predetermined relationship between x and p can be established by suitable choice of the components and ratios. If two physical variables are involved which do not have a linear relationship a further resistor, and a further potentiometer may be included in the series circuit, and suitable ratios may be chosen to make x directly proportional to the quantity which is a function of the two physical variables, e.g. one voltage may be proportional to ambient temperature and the other to the dew-point, so that the combination can indicate the relative humidity. In one form a first bridge containing a dewpoint transducer 12 (Fig. 4), and a temperature transducer 14, and a second bridge containing a temperature transducer 16 produce voltages which are balanced against a fraction of the temperature voltage across potentiometer 19 and the same fraction of a known voltage across potentiometer 2, this fraction representing relative humidity. The dew-point transducer may comprise two electrodes in a solution of lithium chloride whereby the current through the solution is such that its temperature depends on the absolute humidity of the air, measured by a resistance thermometer. The potentiometer means may comprise potential dividers containing resistors, inductors or capacitors.
Patent GB-926080-A (GB)
Title: Improvements in or relating to supporting frames for respirators
IPC: A62B9/04
Filed: 1961-10-09
Abstract: 926,080. Respirators. O. H. DRAGER, [trading as DRAGERWERK, HEINR. & BERNH. DRAGER]. Oct. 9, 1961 [Oct. 7, 1960], No. 36255/61. Class 81 (2). A holder for carrying respiratory equipment on the user's back comprises two spaced vertical plates 1, 1 having recesses 1a, 4 to receive containers such as a gas bottle or carbon dioxide absorber, the containers extending between the two plates, which are spaced by the appropriate distance to receive them. Curved plates 3, 5 may extend between the plates 1, 1 to support the containers and may be set slightly back from the edge of the corresponding recess, so that the latter edges prevent endwise movement of the container. A regulator and valves or other fittings for the equipment are appropriately attached to the side plates and lugs 23a, 24a may be provided for the attachment of shoulder straps. If one of the containers generates heat in use, as a carbon dioxide absorber, a heat-insulated intermediate wall may be positioned between the plate 3 and the user's back, spaced from the plate 3, so as to allow a free flow of cooling air.
Patent GB-1239924-A (GB)
Title: Improvements relating to rotary crop cutters
Inventor: LEE WILLIAM SAMUEL KINSEY
IPC: A01D34/66
Filed: 1967-08-08
Abstract: 1,239,924. Rotary crop cutters. W. S. K. LEE. 8 Nov., 1968 [8 Aug., 1967], No. 36258/67. Heading A1F. A rotary crop cutter comprises a shear head 12 with a first shear element 16 provided with a circular cutting edge 17 and at least one second shear element 24 rotatable so that its cutting edge 25 co-acts with the first element 16 to cut a standing crop. The head 12 is mounted in trunnions 10 attached to a supporting boom 11, the first and second shear elements being urged together by a spring, Fig. 2 (not shown), and a chain drive 31 may be provided to a sleeve 21 supporting the elements 24. Alternatively, Figs. 4-5 (not shown), a boom (42) may support the cutting heads from below, being suspended from a tractor three point linkage. The first shear element 16 may be rotatable periodically to equalise wear and the second elements 24 may rotate about an axis eccentric of the first shear element 16. One second element 24 may bear a sharpening device for the circular edge 17.
Patent GB-960156-A (GB)
Title: Improvements relating to clutches
IPC: F16D67/02
Filed: 1960-10-24
Abstract: 960,156. Controlling clutches; disc brakes. A. FERRANTI. Oct. 24, 1960, No. 36345/60. Headings F2E and F2L. A driven clutch disc 20 fast with a hub 16 keyed for axial movement upon a driven shaft C is normally biased by springs 18 to engage with a friction lining 22 upon the rotor B of a driving electric motor in a press &c., disengagement being effected by rotation of a ring 42 containing several multiple roller assemblies 34, 36, 38, 38<SP>1</SP> engaging between cam surfaces 32 upon a fixed plate 30 and plane surfaces upon a ring 28 adjustably threaded upon the hub 16, the rollers riding up the cam surfaces to slide the hub 16 leftwards of the Figure and the self-energizing action being such that the driven clutch 20 is then engaged with a fixed brake ring 25. Each multiple roller assembly comprises a central roller 34 of relatively small size engaging only with the associated cam 32 on the fixed plate 30, and two larger diameter rollers 38, 38<SP>1</SP> freely mounted at each side of the roller 34 on pins 36 integral therewith and engaging only the ring 28. When the clutch disc 20 is engaged with the driving rotor B, the spacing between the fixed plate 30 and the ring 28 is such that the rollers lie entirely freely between them. When the ring 42 containing the multiple roller assemblies is first turned, the inner rollers 34 engage with the cams 32 and the outer rollers 38, 38<SP>1</SP> engage with the ring 28. The direction of rotation of the driven clutch disc 20, the hub 16 and the ring 28 is such that the rollers 34 are then pushed up the cams 32 and the driven clutch disc 20 engages the fixed brake ring 25. To permit this self-energizing action, the multiple roller assemblies 34, 36, 38, 38<SP>1</SP> may be mounted with some lost-motion within their control ring 42. A worm 46, driven by a separate control electric motor meshes worm teeth formed around the periphery of the roller control ring 42. Disengagement is effected when the press &c. has almost completed each of its operating cycles by means of a switch in the circuit of the control electric motor.
Patent GB-1105797-A (GB)
Title: Cable eccentricity control mechanism
Inventor: BLISS NORMAN STANLEY
IPC: H01B13/00
Filed: 1966-08-16
Abstract: 1,105,797. Cables. STANDARD TELEPHONES & CABLES Ltd. 16 Aug., 1966, No. 36535/66. Heading H1A. Insulated cable 1 (Fig. 1) is to be passed through a cutting device to shave the insulation to constant diameter, and the arrangement illustrated, which in response to signals from a sensor situated beyond the cutting device aligns the axis of the cable with that of the cutting device, comprises pairs of guide levers 2, 4 and 3, 5, each pair being movable towards each other in equal amounts in response to change in diameter of the cable, and in the same direction as each other to move the axis of the cable. Each of the guide levers 2, 3, 4, 5 is coupled via a fixed pivot to a control lever 6, 7, 8 or 9, and the floating pivots of control levers 7 and 9, and 6 and 8 are coupled respectively by rods 10 and 11 whose lengths are adjustable by members 12 and 13. The latter are controlled by a feed-back arrangement from the sensor device previously referred to. Springs 14, 15 tending to move the pairs of linked floating pivots in the same direction, are responsible for the movement of the flat surfaces of the guide levers in opposite directions to accommodate variations in cable diameter (Fig. 3, not shown) while the lengthening or shortening of the coupling rods moves the flat surfaces in the same direction and therefore moves the cable axis (Fig. 2, not shown). In Fig. 6, feed-back signals control the rotation of shaft 30 which via gears 8 and 7 and shank 27 of gear 7 with oppositely threaded ends moves blocks 28 and 29 in opposite directions. The guide members, only one pair of which are shown, comprise the racks of rack-and-pinion devices.